| 拉锥光纤-平板波导耦合电场测量传感器的参数优化与结构改进 |
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| 引用本文： | 杨帆,陈思远,王涉,陈洋.拉锥光纤-平板波导耦合电场测量传感器的参数优化与结构改进[J].重庆大学学报(自然科学版),2017,40(11):37-46. |
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| 作者姓名： | 杨帆 陈思远 王涉 陈洋 |
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| 作者单位： | 重庆大学电气工程学院,重庆,400044 |
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| 基金项目： | 第九届国家级大学生科研创新训练项目（2015061117）。 |
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| 摘 要： | 对一种拉锥光纤平板波导耦合器(TFSC,tapered fiber-slab coupler)测量电场的方法进行了研究,详细讨论了TFSC的参数对传播性能的影响,为设计TFSC传感器结构参数打下了理论基础。在RsoftBPM中搭建仿真平台进行仿真,结合模式耦合理论,定性地分析了耦合器结构参数对测量精度、测量范围以及设备尺寸的影响;在此基础上提出了对该传感器提升测量精度或者增大测量范围的设计原则,并给出一组设计实例;分析了耦合器对原电场的畸变作用,并结合仿真对耦合器结构进行了改进。
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| 关 键 词： | TFSC 模式耦和 电光效应 电场传感器 |
| 收稿时间： | 2017/6/13 0:00:00 |
Parameters optimization and structure improvement of the tapered fiber-slab waveguide coupled electric field measurement sensor |
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| YANG Fan,CHEN Siyuan,WANG She and CHEN Yang.Parameters optimization and structure improvement of the tapered fiber-slab waveguide coupled electric field measurement sensor[J].Journal of Chongqing University(Natural Science Edition),2017,40(11):37-46. |
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| Authors: | YANG Fan CHEN Siyuan WANG She and CHEN Yang |
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| Institution: | College of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China,College of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China,College of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China and College of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China |
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| Abstract: | The method of measuring the electric field of a tapered fiber-slab coupler(TFSC) is studied. The influence of the parameters of TFSC on the propagation performance is discussed in detail in order to design a TFSC sensor with better parameters. Firstly, the simulation platform is simulated in RsoftBPM, and the influence of the coupling parameters on measurement accuracy, measurement range and size of the equipment is analyzed qualitatively according to the coupled-mode theory. Then, the design principle for the sensor of improving measurement accuracy or increasing measurement range is proposed and a set of design examples is given. Finally, the distortion of the original electric field is analyzed, and the coupler structure is improved by simulation. |
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| Keywords: | TFSC mode coupling electro-optic effect electric field sensor |
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